USD conversion finished!


20 replies to this topic
  • Jeff@TheQuadShop

Posted April 13, 2007 - 07:16 PM

#1

I just finished up a CR USD fork swap onto my XR600. I can't believe how easy it is with the conversion bearings. No machine work needed.
I'll try and get some pics and info up soon.

I ended up with two sets of the forks and two front wheels. I'm going to sell the extra pair of 95 CR500 forks and a front wheel/axle that will fit 95-07 CR125/250, 95-01 CR500, 02-07 CRF450 and 04-07 CRF250.
These are like the same parts I used on mine, if anyone is interested in these let me know soon.

Posted Image

Posted Image

  • rmhrc630

Posted April 13, 2007 - 08:12 PM

#2

I just finished up a CR USD fork swap onto my XR600. I can't believe how easy it is with the conversion bearings. No machine work needed.
I'll try and get some pics and info up soon.

I ended up with two sets of the forks and two front wheels. I'm going to sell the extra pair of 95 CR500 forks and a front wheel/axle that will fit 95-02 CR125/250, 95-01 CR500 and 02-03 CRF450.
These are the same parts I used on mine, if anyone is interested in these let me know soon.


Jeff do you mean by conversion bearings the ones mentioned in the 400R thread?

I want to see pics !!!!!

  • Jeff@TheQuadShop

Posted April 14, 2007 - 06:44 AM

#3

Yes, they allow you to mount the CR stem without machine work. I hope to have pics up sometime this week.
If you can't wait, there are lots of posts with pics on here.

  • Owyhee

Posted April 14, 2007 - 08:30 AM

#4

I have 1995 CR500 forks on my 600. Once you have a chance to ride it, see if you notice the extra fork length. Mine are also really harsh at low speeds (I haven't revalved yet) but really great at high speeds. I'm afraid to fuss with the valving too much because I really like the high-speed stability.

Do you want my extra set of fork slider covers? They're red and have a sticker of some sort on them.

"O"

  • Jeff@TheQuadShop

Posted April 14, 2007 - 03:22 PM

#5

I have 1995 CR500 forks on my 600. Once you have a chance to ride it, see if you notice the extra fork length. Mine are also really harsh at low speeds (I haven't revalved yet) but really great at high speeds. I'm afraid to fuss with the valving too much because I really like the high-speed stability.

Do you want my extra set of fork slider covers? They're red and have a sticker of some sort on them.

"O"


Did you try backing off the compression adjusters? Also don't forget to bleed off the air after each ride.
Thanks for fork guard offers but I already bought some new ones.

  • Owyhee

Posted April 14, 2007 - 11:29 PM

#6

Did you try backing off the compression adjusters? Also don't forget to bleed off the air after each ride.
Thanks for fork guard offers but I already bought some new ones.


On my last ride I backed the compression and rebound adjusters all the way to zero before moving them up to where they felt right. They weren't even close to the nice plush feeling that the stock forks give over rocks and ruts going slow.

On the other hand, I can hit a 55mph wash without the bike getting all crazy. In the future when I'm gainfully employeed I'll spring for the Gold Valves and a revalve. For now, what I have will have to do.

"O"

  • Jeff@TheQuadShop

Posted April 15, 2007 - 06:09 AM

#7

Changing to a 5wt oil will also help.

  • CTXr650L

Posted April 15, 2007 - 06:29 AM

#8

i have a set of 98 cr250 forks on my 06 650L and they seem more plush than the stockers, i'm actually thinking of going up on spring rate a bit so...

  • Jeff@TheQuadShop

Posted April 15, 2007 - 06:32 AM

#9

I'm beginning to think that Owyhee's forks have been resprung and/or valved for a heavier rider or MX.

  • Jeff@TheQuadShop

Posted April 15, 2007 - 06:54 AM

#10

I added pics above.

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  • Owyhee

Posted April 15, 2007 - 10:02 AM

#11

I'm beginning to think that Owyhee's forks have been resprung and/or valved for a heavier rider or MX.


True, they were revalved and/or resprung. I got a whole rolling chassis CR500. It was owned by a short fat guy for desert riding. It had a 6.0/kg spring on the rear and the seat was dished out nearly to the pan.

When I put the forks on I figured that the fat guy's forks would actually be a pretty close match for my 600. I'm about 70lbs lighter than the former owner and my bike is about 60lbs heavier than the 500 (I'm guessing my 600 weighs in at about 305lbs with a full 4.5 gallon tank).

Riding with a full tank is pretty good. The fork soaks up the chop pretty well at speed and only when the tank is getting low does the fork really feel harsh. At low speed, tank empty or full, the fork is pretty harsh.

It's a compromise I'm happy to make. I loved the stock forks in rocks and on choppy/tight trails but they were a bit feeble at high speed.

"O"

  • xr500_89

Posted April 15, 2007 - 10:46 AM

#12

you know i might be interested in those cr500 forks what do you want for them i was looking to change mine they seem really really soft for the riding i do

  • Jeff@TheQuadShop

Posted April 15, 2007 - 12:13 PM

#13

I'll take $125 shipped for the forks.

  • cbaranski

Posted April 15, 2007 - 02:02 PM

#14

Jeff@TheQuadShop
Would that front wheel work on my 01 cr125 USD fork set up? I'd be interested if it would.

  • Jeff@TheQuadShop

Posted April 15, 2007 - 02:17 PM

#15

According to the WB catalog, it will fit 95-07 CR125/250, 95-01 CR500, 02-07 CRF450 and 04-07 CRF250.

  • tomb1957

Posted April 15, 2007 - 09:54 PM

#16

I just changed the 1999 cr250r forks (one fork was damaged inside )on my 98 xr6 to 2003 cr125 forks and have found that the axle is different than the one which worked with the wheel I'm using. I am using a 2001 cr125 wheel and axle. I had to cut some off of the bushing to make the wheel center correctly between the fork legs. So far it seems that the portion that the pinch bolts clamp on the axle is same as the 2001 axle, just the main shaft section has changed. It became apparent when I tried to bolt the caliper on. Thats when I noticed the wheel was not centered and there was a pretty big space between the caliper and where it bolts to the fork. At first I shimmed it and the wheel was too far off center for my taste that way.

  • oldchvytrx

Posted April 16, 2007 - 06:47 AM

#17

Changing to a 5wt oil will also help.


<<<<>>>>
Try adjusting the oil level too. High levels will make them firm up.
:thumbsup: :worthy: :ride:

  • Jeff@TheQuadShop

Posted April 16, 2007 - 08:38 AM

#18

I just changed the 1999 cr250r forks (one fork was damaged inside )on my 98 xr6 to 2003 cr125 forks and have found that the axle is different than the one which worked with the wheel I'm using. I am using a 2001 cr125 wheel and axle. I had to cut some off of the bushing to make the wheel center correctly between the fork legs. So far it seems that the portion that the pinch bolts clamp on the axle is same as the 2001 axle, just the main shaft section has changed. It became apparent when I tried to bolt the caliper on. Thats when I noticed the wheel was not centered and there was a pretty big space between the caliper and where it bolts to the fork. At first I shimmed it and the wheel was too far off center for my taste that way.


The wheels are the same, its just the spacers that are different.

  • cbaranski

Posted April 16, 2007 - 09:10 AM

#19

Jeff@TheQuadShop
How much for the front rim?

  • Jeff@TheQuadShop

Posted April 16, 2007 - 11:18 AM

#20

$125 shipped





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